html,
body {
	color: #4e4e4e;
	font-size: 26px;
	font-family: Arial, Helvetica, sans-serif;
}

.row {
	display: flex;
	flex-direction: row;

	> div {
		flex: 0 0 auto;
	}
}

.column {
	display: flex;
	flex-direction: column;

	> div {
		flex: 0 0 auto;
	}
}

.center {
	position: fixed;
	top: 50%;
	left: 50%;
	transform: translateX(-50%) translateY(-50%);
}

img {
	width: 100%;
}

.mask {
	position: fixed;
	top: 0;
	right: 0;
	left: 0;
	bottom: 0;
	background: rgba(0, 0, 0, 0.6);
	z-index: 2021;
}
